<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>CSS测试</title>
    <link rel="stylesheet" href="./test_5.css ">
    <style >
        #s1 {
            color:red;
        }

        .span {
            color:blue;
        }

        a {
            color: black;
        }
        
        ul li{
            color:blueviolet;
        }
        
        #d6{
            border: 1px green solid;
            width: 500px;
            height: 200px;
            padding: 30px;/*内边距*/
            margin: 20px;/*外边距*/
        }
        

        /* span, a{
            color:green;
        } */
    </style>
</head>
<body>

    <div>
        <div>
            <span id="s1" class="span">这是111</span>
        </div>
        <div>
            <a href="./test_3.html" target="_blank">这是222</a>
        </div>
        <div>
            <!-- <img src="D:\1\微信图片_20230717224700.jpg" width="300px"> -->
             <ul>
                <li>
                    这是333
                </li>
             </ul>
        </div>
    </div>
    
    
    <div>
        <span id="s2" class="span">这是444</span>
        <div id="d5">这是555</div>
    </div>

    <div id="d6">
        这是666
    </div>
    
</body>
</html>